Why Are Some People Left Handers?

Why Are Some People Left  Handed? Interesting Facts About Left Handers

                                      


According to one estimate,10% of population are left handed. According to yet another estimate, two out of three lefties are males. 84% of left handers have both parents right handed. And in 12% genetically identical twins, the one will be right handed and the other left.

Two out of three lefties are males. Left handedness is hereditary. About 50% of the children of lefthanded parents will be lefthanders. Left handers outnumber among the members of certain families.



In 90% of the right handers the speech language sender is in the left hemisphere of the brain, while only 15% of left handers have it on the right hemisphere.

Left handers are at high risk of psychological problems and victims of schizophrenia, phobias, and maniac depressions. They are also three times more likely to attempt suicide. Left handers are also twice as prone to diabetes, ulcerative colitis, arthritis ,etc.

About twenty percent of mathematical geniuses are left handers. Among the histories most famous warriors were many left handers. They include Alexander the great, Julius ceaser, Charlemagne ,Joan Of Arc, Nepoleun, and others. Michelangelo , Leonardo Davinci, Charle Chaplin, Marylin Munroe, George Bush, Bill Kilnton and several other notable personalities belong to the left handed group.

According to scientist the handedness of the human beings is related to the structural patterns of the nervous systems and its relationship to the brain.